if u believe btc will be dethroned, then which digital currency is able to do that?
Oh there are several with improved features, but people support Bitcoin because it has the strongest network at the moment. This might change over night, if something happens when people lose their trust in the network. A coin is just as strong as the people supporting it.
Coins like ETH / Dash / LiteCoin is getting very popular and even things like Openledger. ^grrrrrr^